Dihybrid Inheritance

Dihybrid Inheritance

11.2

Dihybrid Inheritance

Studies of two pairs of alleles that control two contrasting traits/characters.
Example: the seed shape and the seed colour.
The original parents denote as P generation.
The result of the parental cross appeared as the F1 generation.
The plants of F1 generation allowed to cross-pollinate to produce the F2 generation.

Mendel's Second Law:

During gamete formation,each allele from a pair of alleles can combine randomly with any allele from another pair of allele

Summary of Mendel dihybrid inheritance:

New combinations of characteristics are produced in the F2 generation namely constricted yellow seed and round green seed
Two characteristics (seed shape and colour) are combined on F1 generation but later they seperate and react freely in F2 generation